Captain Pike and his crew welcome a Klingon defector aboard the U.S.S. Enterprise, but his presence triggers the revelation of some shocking secrets.

The Flash and team are in for the fight of their lives, meanwhile, Iris discovers the cause of her time sickness.

Cisco and Chester travel back in time and get stuck in 1998, repeating the same day over and over again. The key to returning home is at Chester’s childhood home…

The Flash must deal with Abra Kadabra’s sudden return to Central City. The villain is back with a vengeance and a score to settle. Meanwhile, Allegra deals with a tricky…

The Flash S06E17: After recent events, Barry takes a closer look at his life with Iris. Eva makes a bold move.